USB hub



FIG. 1 is a top perspective view of a USB hub.

FIG. 2 is a front view of the USB hub of FIG. 1.

FIG. 3 is a rear view of the USB hub of FIG. 1.

FIG. 4 is a first side view of the USB hub of FIG. 1.

FIG. 5 is a second side view of the USB hub of FIG. 1.

FIG. 6 is a top view of the USB hub of FIG. 1; and,

FIG. 7 is a bottom view of the USB hub of FIG. 1.

Portions of the USB hub shown in broken lines form no part of the claimed design. 

CLAIM We claim the ornamental design for a USB hub, as shown and described. 